title: Sex hormone patterns and serum retinol concentrations in adolescent girls.
mesh_terms: D000293:Adolescent; D000328:Adult; D004967:Estrogens / Q000097:blood*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood*; D008597:Menstrual Cycle / Q000097:blood / Q000502:physiology*; D009549:Nigeria; D011374:Progesterone / Q000097:blood*; D012424:Rural Population; D014801:Vitamin A / Q000097:blood*
chemical_list: D004967:Estrogens; D014801:Vitamin A; D011374:Progesterone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone